摘要
土地利用/覆盖变化是全球变化的主要原因,也是与可持续发展密切相关的课题。土地利用/覆盖变化模拟是预测未来土地利用/覆盖变化的重要方法。将国际上先进的CLUE-S模型应用到位于黑河中上游的张掖市,模拟该地区的土地利用/覆盖变化。模拟时段为2001～2020年。模型中将土地利用类型分为:1耕地;2林地;3草地;4水域;5城镇用地;6未利用地。用回归分析的方法,选择了对该地区土地利用/覆盖变化有重要贡献的7种驱动因子,分别为:与城市的距离、与河流的距离、与道路的距离、人口密度、海拔、坡度、坡向。模拟结果显示:到2020年,林地、草地、水域和城镇用地面积增加,耕地,未利用地面减少。
Land use and land cover change is the main reason of global change, and it relates to sustainable development closely. We apply the advanced model 'CLUE-S' to simulate land use and land cover change in Zhangye city from 2000 to 2020. Land use type is divided into 6 types, including field, woodland, grassland, water area, town, unused land. Using regression method, we choose 7 kinds of driving factors that make important contribution to land use and land cover change in this area. It includes distance to city, distance to river, distance to road, population density, altitude, slope and aspect. The simulation result shows that the area of woodland, grassland, water and down increases. However, the area of field and unused land decreases.
出处
《遥感技术与应用》
CSCD
2004年第5期359-363,共5页
Remote Sensing Technology and Application
基金
国家自然科学基金项目(40235053)
甘肃省中青年科技基金项目(031-A21-005)
西北师范大学知识与科技创新工程(NWNU-KJCXGC-02-20)资助。
